Revolution-counter resetting



A, C. woon.

REVOLUTION COUNTER RESETTING,

AY'PLICAIION PILU) SEPTVS-, 1920.

1,400,197'. Patenten Deo. 13, 1921.

2 SHEETSSHEE? l.

AJC. WOOD REVOLUTION COUNTER RESETTING APLICAHON FILED SEPT 30, 1920.

1,400,197 Patented Dec. 13, 1921.

2 SHEETS`SHEET 2.

IA" VENTO/R ANDREW C. 'WO0D, F CHICAG, ILLNGIS,

assIGNoR To STEWART-WARNER SPEEDOMETER CCRPORATION, F CHICAGG, ILLINOIS, A CORPORATION OF VIRGINIA.

Specication of Letters Patent.

REYOLUTGN-CGUNTER RESETTHTG.

Patented Dec. 13, 1921.

.application filed September -30, 19%0. Serial No. 413,792. v

To all 1li/30m 'it may concern.'

Be it known that I. ANDREW C. lVoon, a citizen of the United States. and a resident of the city of Chicago. in the county of Cook andthe State of illinois, have invented certain new and useful improvements in Revolution-Counter Resetting, of which the following is a specification, reference being had to the accompanying drawings. forming a part thereof.

The purpose of this invention is to provide a suitable construction of revolution counter dapted for resetting to Zero or any other identical gure alinement, or for -resetting unit-by-unit from a 'higher to a lower reading or vice versa, both operations to he per formed by the same manually operable part. lt consists in'the elements and features of constructiony shown and described as indicated in the claims.

In the drawings:

Figure l is a partly sectional front elevation of a portion of the counter train of the device embodying this invention. section being made axially with respect to the main counter shaft and the resettiing shaft through part of the elements of the train.

Fig. '2 is a section at the line, 2 2, on Fig. l. i

Fig. 3 is a section at the line, on Fig. l.

Fig. 4 is -i section at vthe line.` *1t-"J1, lon Figli. L s y lig. 5 is a section at the line o--5, on Fig. l.

Fig. t3 is a sectional view similar to the sectional portion of Figi l, shmving the parts adjustedito a position for resetting.

The structure shown in this application embodies an improvement onthesuhstance ot my pending application No. 375.515, filed April 21. 192), for a device of the same general class and type. In the said pending application the construction shown adapted for resetting all the dials at once by a single shift or revolution in one direction ot' the main shaft. and the'lowest denomination dial, to zero or to any other identical figure alinement, and also for setting to any numeral indication unit-by-unit from zero or any lower reading to any higher read ing, the same manually operable parts, as

`vice comprises a main frame member, l

a rotatable knob serving for both features ot resetting.

En that construction no meansfis provided for resetting unit-byunit downward,-that is, from a. higher to a lower reading. In the present application. the structure shown is adapted also for setting from higher to lower reading, unit-by-unit, the same manually operable part serving for that mode of resetting, and also for resetting all the wheels at once to zero or any other identica-l figure alinement.

In said former pending application the resetting .unit-byunit from zero being ef'- fectcd by manualfoperation of the train as it is operated in the normal running' when driven by the shaft whose revolutions are to be counted, it is evident that the manual operation must he bj' rotatwn of the main shaft or prime rotat.j 2 elei; ont of the train in the saine direction as it is rotated in the normal running; and from this it follows that the other setting,-to zero or other identical figure alineznent.-inust. beby rotation in the opposite direction.

In the structure of the present applicaion, the setting unit-by`unit downward,- hat is. from a higher to a lower reading,- icing effected by the rotation of the main raft or prime rotated element of the train, iq. evident that it must be done by the rotation of that prime element in the reverse direction from that in which itis rotated in the normal running. And it follows that if this is to be done by the same manually 0perated part which is employed for setting' all the wheels simultaneously to zero or other identical ligure alinenient. the latter adjust nient must be effected by rotating the shaft in the opposite direction-that is, in the direction of normal running c 1` the shaft.

To this end, the construction is as follows.

The mount or frame structure for the debearing brackets. 2 and 3, mounted thereon and a housing member, el, which incloses the intermeshing gears and the parts of the manuall)v operating resetting device. The counter train main shaft, 5, is journaled in the brackets, 2 and 3, and its right hand end extends into the housing, 4, in which there is journaled the reset shaft, 6, extending outside the housing for carrying a knob, 6, by which it is manually operated. in the end of the shaft, 5,' witlun the housing, l, 'is

. beveled gear, 7, which meshes with a larger lll beveled gear, '8, on the reset sliai't, 6, when vthe said shaft is longitudinally adjusted to the proper position for intel-meshing of said gears. At the running position ci the counter-train last 'two gears are not in mesh, but instead the shaft, 5, is stopped in an annular groove, 6a, of the shaft, 6, having one side sloped out to a greater diameter to the margin of alesser groove, 6", and thence further sloped to the margin of still shallower groove, 6*,in the shaft, the two lesser grooves lacing adapted for stopping the shaft, 5, at two different longitudinal positions for the purpose hereinafter explained.

' 'When the reset shaft, 6, is pulled out by the knob, 6d, for taking the end of the shaft, 5, in the shallowest groeve, 6c, said shaft, 5,

' is thereby thrust longitudinally inward with respectto the counter train against the reaction of a. spring, 9, contained in ran axial here of the continuous train shaft, l0, which is alined with the shaft, 5, and operates the continuous or totaling train of which two E "l n, F./ l d h. .h l.

mais are nown 1n 1g. an Wn( is requiring urther explanation here and which constitutes no part of the present invention.. @niche main sha-ft, 5, it carries rigid therewith for rotation a gear, l2, which meshes with a driving gear, 13, which "he understood to be driven by the shaft whose revolutions are to he counted, the two gears being in the same plane transverse to the shaft, 5, at the position of said shaft shown in Fig. l, that is, with its right hand end seated in the deepest groove, 6a, of the reset shaft. ldhen the shaft, 5, is thrust to tie other position` indicated-that is, for

ating at its right-hand end in the shallowtst groove, 6, of the reset shaft, the gea-r, l2, is thereby carried out of the plane of the driving gear, 13, and .therefore out et driving engagement with the shaft Whose revolutions are to be counted, and free to be rotated for manual resetting by thereset shaft, 6,' throu h the intermeshing bevel gears, '7 and 8. gThe construction, as thus far described, except as to the intermediate groove, 6"", is substantially that of my copending application No. 375,515, and also any prei/loue application still pending, No. 353,770, filed January. 24th, 1920, and is no part ot the present invention.

The @successive dials and number Wheels, 20, 2l and 22, from lowest to highest are connected from lower to higherby means ol a eontinuouslyteotlied or uumutilated gear. 2.5, whose teeth are in number multiples of ten, mou`t ,l on the side of each number Wheel to rd the next preceding uuml/ier Wheel or dial, each dial or number wheel ven in a manner entirely familiar and not- @sooner having a mut"ated gear, 26, and a delay or locking dish, 2T, at the side toward the nent succeeding dial or number wheel; the mutilated gear, 26, has means for driving engagement throughout one-tenth oi' its circumference, and the delay or locking disk, 27, is correspondingly eut away at Athe side toward the next succeeding number Wheel or dial; and a pinion, 28, is provided journaled on a shaft, 29, parallel to the main counter train shaft, said pinion being actuated by the toothed portion of the gear, 26, for rotating the adjacent gear, 25, and its dial through one-tenth of a revolution for each reVolution of the prereding gear, 2G, and its dial, thus efeetin "cai-rying from column to column. 'illus construction for carrying in all details which are not here deserilied, is fully shown and described in my said eopending application, and in itself constitutes no part ofthe present invention and need not be further described here.

The shaft, 5, is reduced in dia-meter from its left hand end which telescopes Within the shaft, 10, to a shoulder, 5, and it is 'lurther reduced, for so telescoping, from its left hand end beek toward the right hand end to a shoulder, 5b, the total extent, of the intermediate diarnetered portion of the shaft between the two shoulders heingrtlie total length or" the counter-train, comprising all the counter Wheels and the gears thereon. The shaft, 5lias a key-way, 5c, extending longitudinally from the shoulder, 5, nearly to the shoulder, 5b, said key-Way being a rectangular groove from the shoulder, 5a, to a pointwitliin the lowest counter Wheel, the remainder of lengtn of the key-Way being: cutaway at one side, leaving only one abrupt side, 5d, to form a ratchet shoulder` and the other side sloping off, as seen in Figs. 3, l and 5, so that any tooth adapted to engage said shoulder Will operate as a pawl. for one- Way engagement with the shaft. 30 is a sleeve which servesas a bushing for the lowest denomination. counter-Wheel or dial, and the delay and ,locking disks, 26 and 27, thereof. This bushingr sleeve is reduced in exterior diameter at the end opposite the delay and loc-kingI disks, 'to seat a disk` 3l., which has the central aperture to 'fit the reduced end of the bushing sleeve. and a tootlu, 31, projel'zting into its central aperture for engagement with a notch in the redueed end ot the bushing and protruding therethrough for engaging with the key-way, 5c, in the? shalt. The width oi the central openingfo' the disk. Irl from the point ot the tooth. Sla, to the opposite s1de or' the aperture ,is

,great as the diameter ot' the shaft between the shoulders, and 5b. The parts nientioned re at eilil u lay first passing the disk. ill. onto the shalt 'from the aunallei end, the dimensions stated olI the aperture in the disl, permitting it lo pass over the shoulder,

5b, notwithstanding the key-way is not cut through to the shoulder. The lowest denomina-tion dial- 20, and its disks, 26 and 27, are then assembled on the bushing sleeve, and the entire assembly is passed onto the shaft, and-the disk, 3l, having its tooth. 3l, now engaged in the key-way, 5, is passed onto .itsiseat on the reduced end of the hushing' sleeve. The lowest denomination dial or number Wheel, Q0, is secured fast to the disk, 3l, and is kept in rotative engagement with the bushing sleeve by the tooth, 31a. of the disk engaging its notch, a, as described. On the shaft, 5, extending from the shoulder, 5, to the inner end of the sleeve, 30, Within thewhole axial extent of the number wheels above the lowest denomination is a second sleeve, 35, which is loose on the shaft for all purposes at all times, except as engaged therewith by the paw] and ratchet device hereinafter described. The dials or number wheels. 2l and Q2, of denominations above the lowest, are formed with their central sleeves or hub member, '21,rifrid with them and formed separately for convenience of assembling thereon the mutilated delav disks above described, and are mounted loosely on said sleeve for rotative engagement therewith by the pawl-and-ratchet devices hereinafter described. (ln the inner end of the sleeve, 35, there is made fast bv drive fit thereon, a disk, 36, on the face of which there is mounted a pawl, 3'?, and a spring, '38, for pressingthe pawl onto the shaft, 5, but without any engagement with that shaft at the normal running position, the key-way, 5, however. in said shaft 5,

'being extended so nearly to the plane of the left-hand side surface of the disk, 3b, that the longitudinal movement of the. said shaft caused by the reset shaft, i3, when it is withdrawn so t0 seat the right-hand end of said shaft in the shallowest groove, t3, of thc reset shaft brings said key-way at the end portion thereof, into the plane of said pawl .for engagement of theJ pavvl with the abrupt shoulder of said key-way. rl`he sleeve. 35. has a ratchet-shal'lcd key-wav,- that ha ving one abrupt shoulder and one sloping shoulder or face. as seen at 35, extending along its entire length; and cach of the number wheels or dials above the lowestd denomination has mounted upon one face a pawl, 37, spring-pressed by a spring:` 39. forE engage-montl of its free end with said kevwav for one-wav-driving connection between the sleeve and the number wheel or dial. Both the key-ways. 5C. of the shaft. 5. and 35. on the sleeve. 35, have their abrupt shoulders facing, and their respective pawls are mounted for drivingr engagement between the respective parts. in the same directiomand this direction is clock-wise direction of rotation of the shaft or sleeve as viewed from the operating end at which the reset shaft isV situated` being the direct-ion of rotation of the shaft in the normal running of the counter train for registration of the revolutions of the shaft to be indicated. The operation of the structures thus far described maybe understood as follows ln the normal position for runningr to indicate the revolution of the shaft whose revolutions are to be counted. the reset shaft and the main counter drive shaft. o, are relativel)Y positioned as shown in Fig. l, that is, with the right hand end of the shaft, 5, seated in the deepest recessb, of the reset shaft, 6, and the gears, 7 and 8, out of engagement with each other. In this relation of the parts. 1t will be understood that the rotation of the part. l, causes the countertrain to indicate the revolutions in the regular manner b v carrying from each wheel of lower denomination to the next higher by units. When it is desired to reset in either of the methods above described the knob, 6d. of the reset shaft, 6, is pulled'outto withd'raw the reset shaft, (l. to a -position at which the shaft, l. is seated in the shallowest Igroove, il, of the reset shaft, and the shaft, is thercb)v thrust inward for carrying the gear wheel, l2, out of mesh with the drivingr `ear thereof, With the parts in this position. rotation of the knob` 6d, in clock-wise direction producing rotation of the shaft, 5, in anti-clockwise direction, will rotate the initial or lowest denomination dial, 20, in reverse direction of its numbering, and the carrying mechanism will similarlv rotate reversely, each of the succeeding dials, unit by unit, so as to reduce the numerical indications` unit b v unit, from whatever point:

may have been reached in its normal running back to anxY point at which the operator desires to reset in the rotation in this direction. ln this operation the pawl, Si', while standing; in a plane which crosses the keyway, 5, of the shaft, 5, will not engage 'it-h said shaft because it', is traveling in its reverse or r'iingv direction back over the" abrupt shoulder of that key-way. vSimilarly, inv this direction of rotationeach of the number wheels or dials above the lowest denomination will drag their pawls, 3W', backward over the abrupt shoulders of the key-ways, 35, of the sleeve, 35, and will therefore. not actuate said sleeve.

lf, however, the' operator desires to reset the train back to zero or to any other identical' ligure of alinement, he will rotate the knob, (5d, in the reverse of clock-wise direction, thereby rotating the shaft, 5', in clockwise direction. Rotating in this direction the shaft, 5, by means of the key-way, 5 will engage the pawl, 3T, of the disk, 36, and will thereby rotate the sleeve, 35, in the direction to cause the abrupt shoulder of the kevway, 35, to engage the pawls of the several numeral wheels or dials above the lowlll est denomination, :ind thereby in one coinplete revolution of the shaft and sleeve, all of said numeral wheels will be picked up end carried together; sind these pewls being similarly positionedl with respect to the numbers on the peripheries of the dials or number wheels, when they are all engaged by the shoulder of the keyvvay, will lieve similar numbers in alineinent, wherebiT all the numeral Wheels een be brought to alineinent, seid paivls being` situated the lteyvvey, 5C, of the shaft, being situated' with respect to' the lowest denomination diel or niiinber wheel, 2G, so that the Zero of said lowest denomination Wheel is dined with the zero of the Wheel'ski'of higher denomina-tion when the peivls on seid Wheels ere eiigeged with the ratchet shoulder of the sleeve, 35. The intermediate rgroove 6b, on the reset shaft, 6, is provided for the purpose of adapting the structure for advancing the reading' by resetting forwardly unit by unit as in the regular running of the trein. ,For this purpose the gear, 8, is feathered in the reset shaft, 6, by e pin, 8a, set into the shaftand engnging a slot, 8b, in the hub of the. gear and i spring, 8, is provided reacting be tween the stop flange, 8, of a sleeve or collar, 8e, {Which is pinned to the shaft by the saine pin S2) end the beck of the. gear `for holding the gear yieldingly against it s shoulder, tif, on the shlift 6,- so that the shaft 6, being withdrawn to the point et which the end of the shaft. 5, seats in the intermediate groove, 6b, and the gears, 7 end 8, :ire mestieri-may be still further withdrawn to thrust the shaft, 5, farther inwgird and seats its rightliand end in the sliiilioiv'est groove, 6, the goers, 7 and 8. being still operatively nieshed and not objectionably jammed by the relatively tight reaction of the spring", 8b, also to permit the she-ft, 5, to thrust the 'second step for'seeting in the groove, 6", without disturbing the gear, 7, from its meshing position, sain gear, 7, is held on the shsift between u stop zitfoi'ded by the hej-r, 5m, `which engages it with the shaft for rotation, :ind e spring, 5", on the shaft, :it the side of the gear, 7, toward the reset shaft on seid spring being stopped on the shaft. 5, by n pin, 5l. When it is desired to advance the Counter wheels, unit by unit', to :i certain higher numerical indicetion, the reset shaft is withdrawn to the intermediate position :it which the shaft, 5, is seated in the groove, 6b. in this operaitioii, it will be seen that the shaft, is thrust invvsro s, distance insiiilicient to carry the lefthend end of the ratchet groove or keyivey, 5C, out into the plone of the pawl, 37, on the di 36, end said pewl is therefore Without c rement with the shaft, 5, when it is rotated in clockwise direction by Vineens of reset knob sind shaft and gear rotat-ed in enti-clockwise direction by the op eretor-and such rotation of the rese-t ports Will operate the counter train es it is operated in the ordinary running-i. e. for advancing the'nunieral indication unit by unit.

It will be observed that with the shaft, 20, set in the position above described for advancing the readine unit by unit, reset ting in the reverse orv er can be affected bv rotating the knob, 6d, in clock-Wise direction; and it is therefore possible vto nie-ke corrections hack :ind forth, that is, for edvencing or reducing the indication,l with the parts set in this position.

l. ln e revolution counteryin combination with a series of counter Wheels for successive decimal denominations; o counter main shaft on Which the counter Wheels :ire cer ried; permanently engaged for rotating the Wheel of lowest denomination; means for carrying from each Wheel of lower denomination to the next higher, adapted to operate similarly in either direction of rotation; one-wey driving ineens of which one part is rotatably carried by said counter mein shaft, und the other part by the respective counter vfheels for driving the counter wheels of higher denomination lwithout intervention of the carrying ineens, directly by the rotation of the shaft, in the direction for counting upward; said part carried by the being unengaged therewith for rotation et the normal running position of the shaft; manually operatedl ineens for shifting the shaft longitudinally for rotative engagement of said parts, and for rotating th shaft carried port for the Oneway drivnornizil running position of the shaft., and

letter.

the shaft at such shifted position.

2. ln the construction defined ,in claim l,

ingr being ii floating sleeve on the shaft which is out of engagement therewith at the ineens for engaging the sleeve with the shaft :it the longitudinalbY shifted position of the 3. In the construction defined in claim l,

foregoing, the shaft carried part for the one-ivay driving being a floating sleeve on the shefhnnd e forwiird-drive "ratchet connection between the sleeve and the shaft.y of which the sheftcerried part is out of engegeinent With the sleeve-carried part et norinzil rnnniiig position of the shaft, and ineens for engaging the sleeve with the shaft at the longitiidinellj.7 shifted position of the latter. s l

l. in the construction defined in claim l. foregoing, e sleeve loose on the inein coiiiitersheft. free from drivingengagement therewith at the normal running 'position of said shaft :ind sleeve, said sleeve having one of the ports of the one-Way driving connection mentioned, for each of the counter Wheels ehe-re the lowest; normally disensuch shiftingv gaged means for engaging the shaft with said sleeve and means' for shifting the shaft out of normal running position to effect the engagement of said normally .disengaged means.

5. In the construction defined in claim 1 foregoing, a sleeve loose on the main coun- .tershaft, free `from driving engagement therewith at the normal running position of the shaft and sleeve, said sleeve having one of the parts of the one-waydriving connection mentioned for each of the counter wheels above the lowest denomination; oneway driving means normally disengaged for engaging the shaft with said sleeve, and means for shifting the shaft out -of normal running position to effect the engagement of said normally disengaged means.

6. In the construction defined in claim 1 foregoing, means by which the shaft is normally in driven connection with the parts whose revolutions are to be counted, the said driving connections being adapted to be disengaged by the shifting of the shaft mentioned.

7. In the construction defined in claim 1 foregoing, means by which the shaft is normally in driven connection with the parts whose revolutions are to be counted, the manual means for rotatingthe counter. main shaft being shiftable into and out of driving engagement with said shaft, the means for being adapted also to shift the counter main shaft out of and into its sairl shifting position. 8. In the construction' defined in claim 1, the shaft-carried part forhthe one-way driving being a .io'ating sleeve on the shaft which is out of engagement therewith at the normal running position of the shaft, and means for engaging the sleeve with the shaft at the longitudinally shifted position of the latter; the shaft being adapted to be shifted through two steps to two different positions, and to be uneng'aged with the lsleeve at one of said shifted positions; the manuallyoperative relation by the operable means for rotating the shaft beiner operatively engaged at both said shifte positions.

9. In a revolution counter, in comb1nat1on with `a series of counter wheels for successive denomina tions, means for rotating the wheel of lowest denomination; means for carrying from each wheel of lower denomination to the next higher, adapted to operate simllarly in the opposite-direction of rotation for carrying downward from each higher denomination to the next lower; said means comprising a main counter shaft on which the counter wheels are carried, and means by which it is normally in driven connection with the shaft whose revolutions are to be indicated; a reset shaft; gears on said main and reset shafts which are out of mesh at the normal running position of the mechanism; the reset shaft being manually movable for meshing with said gears; means by which said movement of the reset shaft actuates the counter main shaft for disengagement of its driven connection with the indicator shaft; one-way driving connections between the counter main wheels above the lowest denomination, comprising a fioating sleeve on the counter main shaft, which is out of engagement therewith at the normal running' position of said shaft; the reset shaft means for actuating the counter main shaft being adapted for shifting said counter main shaftthrough two steps to two positions away from the normal, the sleeve being unengaged with the counter main shaft at one of said shifted positions, and means for one-way driving sleeve with the shaft which are brought into shifting of the shaft to the other of said two shifted positions.

, In testimony whereof, I have hereunto -set my hand at Chicago, Illinois, this 13th day of September, 1920.

ANDREW o. Woon.

shaft and the counter 

